Occupying conflicting, opposing, and/or contrary positions on some issue or in some situation. Unfortunately, it seems more and more to be the case that those who would see the economy recover and those who strive for social equality find themselves on opposite sides of the barricade.

To launch or participate in a protest against some group, organization, or policy one disagrees with. People around the country are manning the barricades following the president's most recent policy announcement. I would be willing to man the barricades if some giant corporation ever tried to buy out our local businesses.